FS: Samsung 850 EVO 250gb SSD

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Forums › Offers and Wanted › FS: Samsung 850 EVO 250gb SSD

eXDee

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#175428 29-Jun-2015 13:56

Bought a bunch of these from the USA, have one spare.

$180 + shipping

Located hamilton.

PeterReader

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#1333417 29-Jun-2015 13:56

Hey, have you listed a price, location and how much shipping would be to other parts of New Zealand? Also if you are asking for a PM make sure your Privacy settings allow your account to receive PM otherwise people can't contact you. Also note if you are selling something we ask you to offer to other members first. Links to private sales (including Trade Me posts) aren't accepted anymore and will be removed.

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Ronsoak

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#1333623 29-Jun-2015 19:07

Possibly a dumb question but how do SSD's differ?, I can see a few on the market that are cheaper than these Samsung 850 Evos and I often just buy the cheapest so just wondering what would be the incentive to buy one of these more expensive samsungs?

rhy7s

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#1333661 29-Jun-2015 20:03

You can have a look here and follow up on considerations to take into account for SSDs http://www.storagereview.com/best_drives

also, make sure to look at this page linked from the previous: http://www.storagereview.com/buying_an_ssd_the_brands_that_matter

timmmay

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#1333691 29-Jun-2015 21:08

Ronsoak: Possibly a dumb question but how do SSD's differ?, I can see a few on the market that are cheaper than these Samsung 850 Evos and I often just buy the cheapest so just wondering what would be the incentive to buy one of these more expensive samsungs?

Samsung 850 EVO is a good brand, one of the best. One step up is the 850 Pro, which stores 2 bits per cell instead of 3, increasing reliability. The 850 Evo will last years for standard consumer workloads.

eXDee

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#1333735 29-Jun-2015 21:49

tl;dr Some are faster and some are slower. For reliability/resiliency it makes no difference to you as a typical consumer (aside from sudden failures which aren't predictable). All are much much faster than mechanical hard disks.

SSD Performance comes down to a few factors. SSDs are pretty complex, they actually have their own small computer in them about as powerful as a low end smartphone. Speed comes down to the NAND memory, the controller telling it how to operate the NAND/caches, the firmware and the hardware tying it all together.
Samsung drives tend to be a bit more expensive than the rest due to their decent reliability while maintaining some of the highest speeds. Some drive manufacturers such as OCZ in the past have had numerous failed drive batches and bad firmware revisions.
Side note: i also had the pleasure of trying samsungs included migration tool - i was surprised at how simple it is to run the tool and have it clone your data onto the SSD.

The 850 Pro is indeed faster MLC NAND at an increased cost. The 850 EVO uses TLC NAND however samsung moving to 3D "V-NAND" for this 850 EVO model significantly increases the resiliency of the drive in TLC configurations over the older 840 series. Theres great articles on anandtech about it if you want to understand the science behind this 3D Nand tech, at nanometer scale.

Additionally theres a test they did with an extremely limited sample size, where they found an 840 series drive outlived two MLC drives:
https://techreport.com/review/27909/the-ssd-endurance-experiment-theyre-all-dead
Keep in mind that many SSD warranties/design life is well below 100TB written over the life of the drive for drives of this size.

As mentioned though, for consumer workloads it makes next to no difference in this regard. Any drive bought now will become irrelevant by the time you even have to care about its reliability, much in the same way as an old IDE hard disk would be these days - if its still alive.